Implement getPermissionStatus in MockWebPushClient

Required for hasPermission LayoutTests

BUG=401424

Review URL: https://codereview.chromium.org/677073002

Cr-Commit-Position: refs/heads/master@{#302722}

content/shell/renderer/test_runner/mock_web_push_client.cc

@@ -7,6 +7,7 @@
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/public/platform/WebPushError.h"
+#include "third_party/WebKit/public/platform/WebPushPermissionStatus.h"
 #include "third_party/WebKit/public/platform/WebPushRegistration.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 
@@ -56,4 +57,20 @@ void MockWebPushClient::registerPushMessaging(
   delete callbacks;
 }
 
+void MockWebPushClient::getPermissionStatus(
+    blink::WebPushPermissionCallback* callback,
+    blink::WebServiceWorkerProvider* provider) {
+  blink::WebPushPermissionStatus status;
+  if (error_message_.empty())
+    status = blink::WebPushPermissionStatusGranted;
+  else if (error_message_.compare("deny_permission") == 0)
+    status = blink::WebPushPermissionStatusDenied;
+  else
+    status = blink::WebPushPermissionStatusDefault;
+
+  callback->onSuccess(&status);
+  delete callback;
+}
+
+
 }  // namespace content

content/shell/renderer/test_runner/mock_web_push_client.h

@@ -37,6 +37,8 @@ class MockWebPushClient : public blink::WebPushClient {
   virtual void registerPushMessaging(
       blink::WebPushRegistrationCallbacks* callbacks,
       blink::WebServiceWorkerProvider* service_worker_provider);
+  virtual void getPermissionStatus(blink::WebPushPermissionCallback* callback,
+                                   blink::WebServiceWorkerProvider* provider);
 
   std::string end_point_;
   std::string registration_id_;